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I am free yet priceless, you...

I am free yet priceless, you can't own me but you can use me, you can't keep me but you can spend me. Once you lost me you can never have me back. What am I?

Correct answers: 105

The first user who solved this task is Djordje Timotijevic.

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Define embarrassment

Q. What's the definition of embarrassment?

A. Running into a wall with a hard-on and breaking your nose.

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Jerzy Neyman

Died 5 Aug 1981 at age 87 (born 16 Apr 1894).Russian-American mathematician who was one of the principal architects of modern theoretical statistics. His papers on hypothesis testing (1928-33) helped establish the subject. During 1934-38, he gave a theory of confidence intervals (important in the analysis of data); extended statistical theory to contagious distributions, (for interpretation of biological data); wrote on sampling stratified populations (which led to such applications as the Gallup Poll); and developed the model for randomised experiments (widely relevant across the fields of science, including agriculture, biology, medicine, and physical sciences). His later research applied statistics to meteorology and medicine. In 1968 he was awarded the prestigious National Medal of Science.«

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